[wwwdocs] Tweak subscription information at projects/gupc.html

[wwwdocs] Tweak subscription information at projects/gupc.html

[Gerald Pfeifer]

The double colon in the mailto:: must have been a typo, and the
other links sometimes gives troubles, so shorten this overall.

Applied.

Gerald

Index: projects/gupc.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/projects/gupc.html,v
retrieving revision 1.13
diff -u -r1.13 gupc.html
--- projects/gupc.html	26 Feb 2017 13:33:59 -0000	1.13
+++ projects/gupc.html	5 Nov 2017 11:46:43 -0000
@@ -107,13 +107,10 @@
 compilers based on the GNU GCC compiler. Announcements of new compiler ports,
 future plans, as well as known problems will be posted to the GUPC
 discussion list. To subscribe to the GNU UPC list, send an email message to
-<a href="mailto:://gcc-upc-request@hermes.gwu.edu">
+<a href="mailto://gcc-upc-request@hermes.gwu.edu">
 gcc-upc-request@hermes.gwu.edu</a>
 with the single word "subscribe" (without the quotes)
-in the body of the message, or visit the mailing list
-<a href="https://hermes.gwu.edu/cgi-bin/wa?SUBED1=gcc-upc&amp;A=1">
-sign up</a> page.
-</p>
+in the body of the message.</p>
 
 <h2>Contributing</h2>